Jesus answered her, “If you knew the gift of God, and who it is that is saying to you, ‘Give Me a drink,’ you would have asked Him, and He would have given you living water.” (John 4:10)
"What is that gift? The answer may be put in various ways which really all come to one. It is Himself, the unspeakable Gift, His own greatest gift; or it is the Spirit ‘which they that believe on Him should receive,’ and whereby He comes and dwells in men’s hearts; or it is the resulting life, kindred with the life bestowed, a consequence of the indwelling Christ and the present Spirit...
If you have Christ in your heart then life is possible, peace is possible, joy is possible, under all circumstances and in all places. Everything which the soul can desire, it possesses. You will be like the garrison of a beleaguered castle, in the courtyard of which is a sparkling spring, fed from some source high up in the mountains, and finding its way in there by underground channels which no besiegers can ever touch.
Sorrows will come, and make you sad, but though there may be much darkness round about you, there will be light in the darkness. The trees may be bare and leafless, but the sap has gone down to the roots. The world may be all wintry and white with snow, but there will be a bright little fire burning on your own hearthstone. You will carry within yourselves all the essentials to blessedness. If you have ‘Christ in the vessel’ you can smile at the storm.
They that drink from earth’s fountains ‘shall thirst again’; but they who have Christ in their hearts will have a fountain within which will not freeze in the bitterest cold, nor fail in the fiercest heat. ‘The water that I shall give him shall be in him a fountain.’...
It is a shame for men to live the lives that so many amongst us live, as completely at the mercy of externals to determine the direction of their lives as the long weeds in a stream that yield to the flow of the current. It is of no use to preach high and brave maxims, telling men to assert their lordship over externals, unless we can tell them how to find the inward power that will enable them to do so.
But we can preach such noble exhortations to some purpose when we can point to the great gift which Christ is ready to give, and exhort them to open their hearts to receive that indwelling power which shall make them free from the dominion of these tyrant circumstances and emancipate them into the ‘liberty of the sons of God.’ ‘The water that I shall give him shall be in him a leaping fountain.’..."
- MacLaren's Expositions Of Holy Scripture